Printer with different conveyance speeds of recording medium

a technology of recording medium and conveying speed, applied in the field of printers, can solve the problems of degradation of print quality and print quality, and achieve the effect of improving productivity

Active Publication Date: 2018-03-01
RISO KAGAKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]In the aforementioned configuration, since the acceleration of the recording medium is started when the recording medium moves p

Problems solved by technology

When the sheet is pulled out by the downstream conveyance rollers as described above, slipping occurs in the upstream conveyance rollers and this slipping may lead to a degradation in print quality due to retransfer of inks to the sheet or conveyance failure caused by wear of th

Method used

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  • Printer with different conveyance speeds of recording medium
  • Printer with different conveyance speeds of recording medium
  • Printer with different conveyance speeds of recording medium

Examples

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modified example

[0084]In the embodiment, when the size of the print sheet is the short size, the drive controller 302 starts the acceleration of only the first acceleration conveyance driver 260, upon determining that the print sheet has passed the downstream drive end position of the belt driver 250 based on the result of the print sheet detection by the sheet sensor 259, and accelerates the print sheet from the print conveyance speed Vg to the circulation conveyance speed Vr. When the size of the print sheet is the middle-size, the drive controller 302 starts the acceleration of the first acceleration conveyance driver 260 and the second acceleration conveyance driver 261, upon determining that the print sheet has passed the downstream drive end position of the belt driver 250 based on the result of the print sheet detection by the sheet sensor 259, and accelerates the print sheet from the print conveyance speed Vg to the circulation conveyance speed Vr. When the size of the print sheet is the lo...

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PUM

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Abstract

A printer includes: a first conveyor configured to convey a recording medium during image formation by an image former at a first conveyance speed based on a print condition of the image formation by the image former; a second conveyor configured to convey the recording medium at a second conveyance speed higher than the first conveyance speed; and a third conveyor arranged between the first conveyor and the second conveyor on a conveyance route. The third conveyor is configured to start acceleration of the recording medium after a recording region trailing end of the recording medium passes the image former and accelerate the recording medium such that a speed of the recording medium increases to the second conveyance speed not later than a time point when a leading edge of the recording medium reaches the second conveyor.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2016-167809, filed on Aug. 30, 2016, the entire contents of which are incorporated herein by reference.BACKGROUND1. Technical Field[0002]The disclosure relates to a printer.2. Related Art[0003]There is a printer which performs a print operation based on a print job. The print operation includes feeding a sheet from a sheet feed tray, performing printing on the fed sheet with a printing unit while conveying the sheet with a conveyor belt, based on a print job, then conveying the sheet with multiple conveyance rollers, and finally discharging the sheet to a sheet receiving tray with sheet discharge rollers.[0004]In this operation, a conveyance speed of the sheet by the conveyor belt is determined depending on a print speed. The conveyance speed of the sheet conveyed by the sheet discharge rollers is determined by a sheet discharge...

Claims

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Application Information

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IPC IPC(8): B41J13/00
CPCB41J13/0009B41J13/02B41J11/42B41J11/007G03G2215/00556B65H3/06B65H5/062B65H7/02B65H2701/1131B65H2801/03G03G15/00B41J3/60B41J11/425
Inventor HARA, MASASHI
Owner RISO KAGAKU CORP
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